Rename Wiki tab to Berichte and collapse all topics by default

css/styles.css

@@ -85,6 +85,7 @@ a:hover { text-decoration: underline; }
 .wiki-topic h4 { font-size: 1.1rem; font-weight: 600; padding: 12px 16px; background: var(--gray1); border-radius: 8px; cursor: pointer; transition: background .2s; }
 .wiki-topic h4:hover { background: var(--gray2); }
 .wiki-subtopics { padding-left: 24px; margin-top: 8px; }
+.wiki-subtopics.hidden { display: none; }
 .wiki-subtopic { margin-left: 24px; border-left: 2px solid var(--gray2); padding-left: 16px; }
 .wiki-subtopic.hidden { display: none; }
 .wiki-subtopic-title { font-weight: 600; padding: 8px 0; cursor: pointer; }

index.html

@@ -143,8 +143,8 @@
               <span class="hide-en">Members</span>
             </button>
             <button class="tab" data-tab="wiki">
-              <span class="hide-de">Wiki</span>
-              <span class="hide-en">Wiki</span>
+              <span class="hide-de">Berichte</span>
+              <span class="hide-en">Berichte</span>
             </button>
           </div>
           <div class="tab-content" id="tab-users">

js/main.js

@@ -340,8 +340,8 @@ async function loadWiki() {
         const subtopicsDiv = topicDiv.querySelector('.wiki-subtopics');
         const topicTitle = topicDiv.querySelector('.topic-title');
         
-        // Auto-expand all topics initially
-        subtopicsDiv.classList.remove('hidden');
+        // Topics start collapsed
+        subtopicsDiv.classList.add('hidden');
         
         // Toggle topic on click
         topicTitle.onclick = () => {